| Cacem to Orbetello | 1,102.93 mi (1,774.99 km) |
| Cacem to Oria | 1,432.94 mi (2,306.10 km) |
| Cacem to Oristano | 958.12 mi (1,541.95 km) |
| Cacem to Orta Nova | 1,330.34 mi (2,140.97 km) |
| Cacem to Orte | 1,162.59 mi (1,871.01 km) |
| Cacem to Ortona | 1,264.47 mi (2,034.96 km) |
| Cacem to Orvieto | 1,150.48 mi (1,851.51 km) |
| Cacem to Orzinuovi | 1,084.17 mi (1,744.80 km) |
| Cacem to Osimo | 1,225.71 mi (1,972.59 km) |
| Cacem to Ospitaletto | 1,093.99 mi (1,760.60 km) |
| Cacem to Ostuni | 1,429.29 mi (2,300.22 km) |
| Cacem to Ottaviano | 1,266.64 mi (2,038.46 km) |
| Cacem to Ovada | 1,008.24 mi (1,622.60 km) |
| Cacem to Ozieri | 979.98 mi (1,577.13 km) |
| Cacem to Paceco | 1,182.38 mi (1,902.86 km) |
